invalid memory alloc request size 2147483648 using toode LIKE 'ä%'

SELECT * FROM firma1.toode WHERE toode LIKE 'ä%'

causes error:

ERROR: invalid memory alloc request size 2147483648
SQL state: XX000

How to fix ?

Andrus.

toode column type is char(20) and it is primary key.

toode table has index:

CREATE UNIQUE INDEX toode_toode_unique_pattern_idx
ON firma1.toode
USING btree
(lower(toode::text) text_pattern_ops);

Version:

"PostgreSQL 8.2.3 on i686-pc-mingw32, compiled by GCC gcc.exe (GCC) 3.4.2
(mingw-special)"

Database encoding is UTF-8 , cluster locale is Estonian
Occurs in Windows 2003 server and in Vista.

show all:

"add_missing_from";"off";"Automatically adds missing table references to
FROM clauses."
"allow_system_table_mods";"off";"Allows modifications of the structure of
system tables."
"archive_command";"";"WAL archiving command."
"archive_timeout";"0";"Forces a switch to the next xlog file if a new file
has not been started within N seconds."
"array_nulls";"on";"Enable input of NULL elements in arrays."
"authentication_timeout";"1min";"Sets the maximum time in seconds to
complete client authentication."
"autovacuum";"on";"Starts the autovacuum subprocess."
"autovacuum_analyze_scale_factor";"0.1";"Number of tuple inserts, updates or
deletes prior to analyze as a fraction of reltuples."
"autovacuum_analyze_threshold";"250";"Minimum number of tuple inserts,
updates or deletes prior to analyze."
"autovacuum_freeze_max_age";"200000000";"Age at which to autovacuum a table
to prevent transaction ID wraparound."
"autovacuum_naptime";"1min";"Time to sleep between autovacuum runs, in
seconds."
"autovacuum_vacuum_cost_delay";"-1";"Vacuum cost delay in milliseconds, for
autovacuum."
"autovacuum_vacuum_cost_limit";"-1";"Vacuum cost amount available before
napping, for autovacuum."
"autovacuum_vacuum_scale_factor";"0.2";"Number of tuple updates or deletes
prior to vacuum as a fraction of reltuples."
"autovacuum_vacuum_threshold";"500";"Minimum number of tuple updates or
deletes prior to vacuum."
"backslash_quote";"safe_encoding";"Sets whether "\'" is allowed in string
literals."
"bgwriter_all_maxpages";"5";"Background writer maximum number of all pages
to flush per round"
"bgwriter_all_percent";"0.333";"Background writer percentage of all buffers
to flush per round"
"bgwriter_delay";"200ms";"Background writer sleep time between rounds in
milliseconds"
"bgwriter_lru_maxpages";"5";"Background writer maximum number of LRU pages
to flush per round"
"bgwriter_lru_percent";"1";"Background writer percentage of LRU buffers to
flush per round"
"block_size";"8192";"Shows size of a disk block"
"bonjour_name";"";"Sets the Bonjour broadcast service name."
"check_function_bodies";"on";"Check function bodies during CREATE FUNCTION."
"checkpoint_segments";"10";"Sets the maximum distance in log segments
between automatic WAL checkpoints."
"checkpoint_timeout";"5min";"Sets the maximum time in seconds between
automatic WAL checkpoints."
"checkpoint_warning";"30s";"Logs if filling of checkpoint segments happens
more frequently than this (in seconds)."
"client_encoding";"UNICODE";"Sets the client's character set encoding."
"client_min_messages";"notice";"Sets the message levels that are sent to the
client."
"commit_delay";"0";"Sets the delay in microseconds between transaction
commit and flushing WAL to disk."
"commit_siblings";"5";"Sets the minimum concurrent open transactions before
performing commit_delay."
"config_file";"C:/Program Files/PostgreSQL/8.2/data/postgresql.conf";"Sets
the server's main configuration file."
"constraint_exclusion";"off";"Enables the planner to use constraints to
optimize queries."
"cpu_index_tuple_cost";"0.005";"Sets the planner's estimate of the cost of
processing each index entry during an index scan."
"cpu_operator_cost";"0.0025";"Sets the planner's estimate of the cost of
processing each operator or function call."
"cpu_tuple_cost";"0.01";"Sets the planner's estimate of the cost of
processing each tuple (row)."
"custom_variable_classes";"";"Sets the list of known custom variable
classes."
"data_directory";"C:/Program Files/PostgreSQL/8.2/data";"Sets the server's
data directory."
"DateStyle";"ISO, DMY";"Sets the display format for date and time values."
"db_user_namespace";"off";"Enables per-database user names."
"deadlock_timeout";"1s";"The time in milliseconds to wait on lock before
checking for deadlock."
"debug_assertions";"off";"Turns on various assertion checks."
"debug_pretty_print";"off";"Indents parse and plan tree displays."
"debug_print_parse";"off";"Prints the parse tree to the server log."
"debug_print_plan";"off";"Prints the execution plan to server log."
"debug_print_rewritten";"off";"Prints the parse tree after rewriting to
server log."
"default_statistics_target";"10";"Sets the default statistics target."
"default_tablespace";"";"Sets the default tablespace to create tables and
indexes in."
"default_transaction_isolation";"read committed";"Sets the transaction
isolation level of each new transaction."
"default_transaction_read_only";"off";"Sets the default read-only status of
new transactions."
"default_with_oids";"off";"Create new tables with OIDs by default."
"dynamic_library_path";"$libdir";"Sets the path for dynamically loadable
modules."
"effective_cache_size";"128MB";"Sets the planner's assumption about size of
the disk cache."
"enable_bitmapscan";"on";"Enables the planner's use of bitmap-scan plans."
"enable_hashagg";"on";"Enables the planner's use of hashed aggregation
plans."
"enable_hashjoin";"on";"Enables the planner's use of hash join plans."
"enable_indexscan";"on";"Enables the planner's use of index-scan plans."
"enable_mergejoin";"on";"Enables the planner's use of merge join plans."
"enable_nestloop";"on";"Enables the planner's use of nested-loop join
plans."
"enable_seqscan";"on";"Enables the planner's use of sequential-scan plans."
"enable_sort";"on";"Enables the planner's use of explicit sort steps."
"enable_tidscan";"on";"Enables the planner's use of TID scan plans."
"escape_string_warning";"on";"Warn about backslash escapes in ordinary
string literals."
"explain_pretty_print";"on";"Uses the indented output format for EXPLAIN
VERBOSE."
"external_pid_file";"";"Writes the postmaster PID to the specified file."
"extra_float_digits";"0";"Sets the number of digits displayed for
floating-point values."
"from_collapse_limit";"8";"Sets the FROM-list size beyond which subqueries
are not collapsed."
"fsync";"on";"Forces synchronization of updates to disk."
"full_page_writes";"on";"Writes full pages to WAL when first modified after
a checkpoint."
"geqo";"on";"Enables genetic query optimization."
"geqo_effort";"5";"GEQO: effort is used to set the default for other GEQO
parameters."
"geqo_generations";"0";"GEQO: number of iterations of the algorithm."
"geqo_pool_size";"0";"GEQO: number of individuals in the population."
"geqo_selection_bias";"2";"GEQO: selective pressure within the population."
"geqo_threshold";"12";"Sets the threshold of FROM items beyond which GEQO is
used."
"gin_fuzzy_search_limit";"0";"Sets the maximum allowed result for exact
search by GIN."
"hba_file";"C:/Program Files/PostgreSQL/8.2/data/pg_hba.conf";"Sets the
server's "hba" configuration file"
"ident_file";"C:/Program Files/PostgreSQL/8.2/data/pg_ident.conf";"Sets the
server's "ident" configuration file"
"ignore_system_indexes";"off";"Disables reading from system indexes."
"integer_datetimes";"off";"Datetimes are integer based."
"join_collapse_limit";"8";"Sets the FROM-list size beyond which JOIN
constructs are not flattened."
"krb_caseins_users";"off";"Sets whether Kerberos user names should be
treated as case-insensitive."
"krb_server_hostname";"";"Sets the hostname of the Kerberos server."
"krb_server_keyfile";"FILE:/usr/local/pgsql/etc/krb5.keytab";"Sets the
location of the Kerberos server key file."
"krb_srvname";"postgres";"Sets the name of the Kerberos service."
"lc_collate";"Estonian_Estonia.1257";"Shows the collation order locale."
"lc_ctype";"Estonian_Estonia.1257";"Shows the character classification and
case conversion locale."
"lc_messages";"Estonian_Estonia";"Sets the language in which messages are
displayed."
"lc_monetary";"Estonian_Estonia";"Sets the locale for formatting monetary
amounts."
"lc_numeric";"Estonian_Estonia";"Sets the locale for formatting numbers."
"lc_time";"Estonian_Estonia";"Sets the locale for formatting date and time
values."
"listen_addresses";"*";"Sets the host name or IP address(es) to listen to."
"local_preload_libraries";"";"Lists shared libraries to preload into each
backend."
"log_connections";"off";"Logs each successful connection."
"log_destination";"stderr";"Sets the destination for server log output."
"log_directory";"pg_log";"Sets the destination directory for log files."
"log_disconnections";"off";"Logs end of a session, including duration."
"log_duration";"off";"Logs the duration of each completed SQL statement."
"log_error_verbosity";"default";"Sets the verbosity of logged messages."
"log_executor_stats";"off";"Writes executor performance statistics to the
server log."
"log_filename";"postgresql-%Y-%m-%d_%H%M%S.log";"Sets the file name pattern
for log files."
"log_hostname";"off";"Logs the host name in the connection logs."
"log_line_prefix";"%t ";"Controls information prefixed to each log line"
"log_min_duration_statement";"-1";"Sets the minimum execution time in
milliseconds above which statements will be logged."
"log_min_error_statement";"error";"Causes all statements generating error at
or above this level to be logged."
"log_min_messages";"notice";"Sets the message levels that are logged."
"log_parser_stats";"off";"Writes parser performance statistics to the server
log."
"log_planner_stats";"off";"Writes planner performance statistics to the
server log."
"log_rotation_age";"1d";"Automatic log file rotation will occur after N
minutes"
"log_rotation_size";"10MB";"Automatic log file rotation will occur after N
kilobytes"
"log_statement";"none";"Sets the type of statements logged."
"log_statement_stats";"off";"Writes cumulative performance statistics to the
server log."
"log_truncate_on_rotation";"off";"Truncate existing log files of same name
during log rotation."
"maintenance_work_mem";"16MB";"Sets the maximum memory to be used for
maintenance operations."
"max_connections";"100";"Sets the maximum number of concurrent connections."
"max_files_per_process";"1000";"Sets the maximum number of simultaneously
open files for each server process."
"max_fsm_pages";"204800";"Sets the maximum number of disk pages for which
free space is tracked."
"max_fsm_relations";"1000";"Sets the maximum number of tables and indexes
for which free space is tracked."
"max_function_args";"100";"Shows the maximum number of function arguments."
"max_identifier_length";"63";"Shows the maximum identifier length"
"max_index_keys";"32";"Shows the maximum number of index keys."
"max_locks_per_transaction";"64";"Sets the maximum number of locks per
transaction."
"max_prepared_transactions";"5";"Sets the maximum number of simultaneously
prepared transactions."
"max_stack_depth";"2MB";"Sets the maximum stack depth, in kilobytes."
"password_encryption";"on";"Encrypt passwords."
"port";"5432";"Sets the TCP port the server listens on."
"post_auth_delay";"0";"Waits N seconds on connection startup after
authentication."
"pre_auth_delay";"0";"no description available"
"random_page_cost";"4";"Sets the planner's estimate of the cost of a
nonsequentially fetched disk page."
"redirect_stderr";"on";"Start a subprocess to capture stderr output into log
files."
"regex_flavor";"advanced";"Sets the regular expression "flavor"."
"search_path";""$user",public";"Sets the schema search order for names that
are not schema-qualified."
"seq_page_cost";"1";"Sets the planner's estimate of the cost of a
sequentially fetched disk page."
"server_encoding";"UTF8";"Sets the server (database) character set
encoding."
"server_version";"8.2.3";"Shows the server version."
"server_version_num";"80203";"Shows the server version as an integer."
"shared_buffers";"240000kB";"Sets the number of shared memory buffers used
by the server."
"shared_preload_libraries";"";"Lists shared libraries to preload into
server."
"silent_mode";"off";"Runs the server silently."
"sql_inheritance";"on";"Causes subtables to be included by default in
various commands."
"ssl";"off";"Enables SSL connections."
"standard_conforming_strings";"off";"'...' strings treat backslashes
literally."
"statement_timeout";"0";"Sets the maximum allowed duration (in milliseconds)
of any statement."
"stats_block_level";"off";"Collects block-level statistics on database
activity."
"stats_command_string";"on";"Collects information about executing commands."
"stats_reset_on_server_start";"off";"Zeroes collected statistics on server
restart."
"stats_row_level";"on";"Collects row-level statistics on database activity."
"stats_start_collector";"on";"Starts the server statistics-collection
subprocess."
"superuser_reserved_connections";"3";"Sets the number of connection slots
reserved for superusers."
"tcp_keepalives_count";"0";"Maximum number of TCP keepalive retransmits."
"tcp_keepalives_idle";"0";"Seconds between issuing TCP keepalives."
"tcp_keepalives_interval";"0";"Seconds between TCP keepalive retransmits."
"temp_buffers";"1024";"Sets the maximum number of temporary buffers used by
each session."
"TimeZone";"Europe/Helsinki";"Sets the time zone for displaying and
interpreting time stamps."
"timezone_abbreviations";"Default";"Selects a file of time zone
abbreviations"
"trace_notify";"off";"Generates debugging output for LISTEN and NOTIFY."
"trace_sort";"off";"Emit information about resource usage in sorting."
"transaction_isolation";"read committed";"Sets the current transaction's
isolation level."
"transaction_read_only";"off";"Sets the current transaction's read-only
status."
"transform_null_equals";"off";"Treats "expr=NULL" as "expr IS NULL"."
"unix_socket_directory";"";"Sets the directory where the Unix-domain socket
will be created."
"unix_socket_group";"";"Sets the owning group of the Unix-domain socket."
"unix_socket_permissions";"511";"Sets the access permissions of the
Unix-domain socket."
"update_process_title";"on";"Updates the process title to show the active
SQL command."
"vacuum_cost_delay";"0";"Vacuum cost delay in milliseconds."
"vacuum_cost_limit";"200";"Vacuum cost amount available before napping."
"vacuum_cost_page_dirty";"20";"Vacuum cost for a page dirtied by vacuum."
"vacuum_cost_page_hit";"1";"Vacuum cost for a page found in the buffer
cache."
"vacuum_cost_page_miss";"10";"Vacuum cost for a page not found in the buffer
cache."
"vacuum_freeze_min_age";"100000000";"Minimum age at which VACUUM should
freeze a table row."
"wal_buffers";"64kB";"Sets the number of disk-page buffers in shared memory
for WAL."
"wal_sync_method";"open_datasync";"Selects the method used for forcing WAL
updates out to disk."
"work_mem";"1MB";"Sets the maximum memory to be used for query workspaces."
"zero_damaged_pages";"off";"Continues processing past damaged page headers."